Autonomous system
AS203819 CYBERCAT
Unclassified RIPE Educational/Research
Summary
kyouma network
educational research small
The AS handle CYBERCAT is held by Emily Kohlmeier.
What it's used for
- The space carries a single IPv4 prefix, 45.150.123.0/24, with the netname
cybercat-networkand registrant Emily Kohlmeier. - The inventory consists of 256 IPv4 addresses and 2 IPv6 prefixes, with 9 observed neighbours, indicating a small-scale network with limited peering.
- Secondary sources identify the operator as an educational or research network, suggesting the traffic consists of academic or research endpoints rather than commercial subscriber traffic.
Notable
- The registrant Emily Kohlmeier matches the registry holder and the netname registrant for the announced prefix.
- The address inventory is minimal, comprising one IPv4 /24 block and two IPv6 prefixes, all located in Germany.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Local Internet Exchange Düsseldorf | Düsseldorf, Germany | 185.1.155.109 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS203819- Registry name
- cybercat
- Registrant
- cybercat-mnt
- Abuse contact
- abuse@kyouma.net
- Registered
- 2023-03-27
- Last changed
- 2024-01-11
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- kyouma network
- Network type
- Educational/Research
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS203819:AS-CYBERCAT- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- https://kyouma.net
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 2 authorising AS203819
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 5 naming AS203819
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 445 networks and 1,817 prefixes, as published 2026-10-27. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere